40211065 has 4 divisors (see below), whose sum is σ = 48253284. Its totient is φ = 32168848.

The previous prime is 40211053. The next prime is 40211071. The reversal of 40211065 is 56011204.

40211065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17372224 + 22838841 = 4168^2 + 4779^2 .

It is a cyclic number.

It is not a de Polignac number, because 40211065 - 2²³ = 31822457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4021102 + ... + 4021111.

It is an arithmetic number, because the mean of its divisors is an integer number (12063321).

Almost surely, 2^40211065 is an apocalyptic number.

It is an amenable number.

40211065 is a deficient number, since it is larger than the sum of its proper divisors (8042219).

40211065 is an equidigital number, since it uses as much as digits as its factorization.

40211065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8042218.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 40211065 is about 6341.2195199346. The cubic root of 40211065 is about 342.5956612042.

Adding to 40211065 its reverse (56011204), we get a palindrome (96222269).

The spelling of 40211065 in words is "forty million, two hundred eleven thousand, sixty-five".